Journal ArticleDOI
Electrocatalytic Oxygen Evolution Reaction (OER) on Ru, Ir, and Pt Catalysts: A Comparative Study of Nanoparticles and Bulk Materials
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In this article, the intrinsic catalytic activity and durability of carbon supported Ru, Ir, and Pt nanoparticles and corresponding bulk materials for the electrocatalytic oxygen evolution reaction (OER) were examined by surface-sensitive cyclic voltammetry.Abstract:
A comparative investigation was performed to examine the intrinsic catalytic activity and durability of carbon supported Ru, Ir, and Pt nanoparticles and corresponding bulk materials for the electrocatalytic oxygen evolution reaction (OER). The electrochemical surface characteristics of nanoparticles and bulk materials were studied by surface-sensitive cyclic voltammetry. Although basically similar voltammetric features were observed for nanoparticles and bulk materials of each metal, some differences were uncovered highlighting the changes in oxidation chemistry. On the basis of the electrochemical results, we demonstrated that Ru nanoparticles show lower passivation potentials compared to bulk Ru material. Ir nanoparticles completely lost their voltammetric metallic features during the voltage cycling, in contrast to the corresponding bulk material. Finally, Pt nanoparticles show an increased oxophilic nature compared to bulk Pt. With regard to the OER performance, the most pronounced effects of nanosca...read more
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Direct Deposition of Amorphous Cobalt–Vanadium Mixed Oxide Films for Electrocatalytic Water Oxidation
TL;DR: A rapid one-step aerosol-assisted chemical vapor deposition method is employed to synthesize amorphous and highly active cobalt–vanadium mixed oxide catalysts (CoVOx) directly over fluorine-doped tin oxide (FTO) substrates to prove the high efficiency of CoVOx materials obtained.
Journal ArticleDOI
Active Intermediates in Plasmon-Induced Water Oxidationat Au Nanodimer Structures on a Single Crystal of TiO 2
TL;DR: The photo-induced water splitting reaction is a promising approach for converting sustainable sunlight into chemical energy as mentioned in this paper, however, the high overpotential for traditional metal catalysts to drive the reaction is limited.
Journal ArticleDOI
Efficient Bi-Functional Electrocatalysts of Strontium Iron Oxy-Halides for Oxygen Evolution and Reduction Reactions in Alkaline Media
TL;DR: In this article, the performance of strontium iron oxyhalide perovskitic oxides was investigated by electrochemical characterization as bi-functional electrocatalysts for oxygen evolution (OE) and oxygen reduction (OR) reactions.
Journal ArticleDOI
Highly Active Rhenium-, Ruthenium-, and Iridium-Based Dichalcogenide Electrocatalysts for Oxygen Reduction and Oxygen Evolution Reactions in Aprotic Media
Leily Majidi,Zahra Hemmat,Robert E. Warburton,Khagesh Kumar,Alireza Ahmadiparidari,Liang Hong,Jinglong Guo,Peter Zapol,Robert F. Klie,Jordi Cabana,Jeffrey Greeley,Larry A. Curtiss,Amin Salehi-Khojin +12 more
TL;DR: Transition metal dichalcogenides (TMDCs) have garnered much attention recently due to their remarkable performance for different electrochemical systems as discussed by the authors, and they have been used in a variety of applications.
Journal ArticleDOI
Na/Al Codoped Layered Cathode with Defects as Bifunctional Electrocatalyst for High-Performance Li-Ion Battery and Oxygen Evolution Reaction.
TL;DR: In this paper, Na/Al codoped Li-excess Li-Ru-Ni-O layered electrodes are demonstrated with defects/dislocations as an efficient bifunctional electrocatalyst toward lithium-ion battery (LIB) and oxygen evolution reaction (OER).
References
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Journal ArticleDOI
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Journal ArticleDOI
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